Type-writing machine.



W. WRIGHT.

TYPE WRITING MACHINE.

APPLICATION FILED MM2?. I9Ia.

Patented Nov. 7, 1916.

5 SHEETS-SHEET I.

IN VENTOR Wam WITN ESS ES ATTORNE;

W. WRIGHT.

TYPE WRITING MACHINE.

v Wam @MW BY W. WRIGHT.

TYPE WRITING MACHINE.

APPLucATloN FILEDYMAYZI, 1913.

5 SHEETS-SHEET 4.

' IN V E N T 0 R @www BY I Patented Nov. 7, 1916.

I LTI -W. WRIGHT.

TYPE WRITING MACHINE.

APPLICATION FILED IVI/w27. 1913.

Patented Nov. 7, 1916.

5 SHEETS-SHEET 5.

I MQW@ WW ATTOR EY ,ars-, anni risico WALTER WRIGHT, Ol NEW YORK, 1\T.Y., ASSIGNOR T0 UNDERWOOD COMPUTING MACHINE COMPANY, 01E' NEW YORK, N.Y., A CORPORATION OF NEWAYORK.

TYPE-WRITIN G MACHINE.

Specication of Letters Patent. Pwlmiil NOV. '7, 1916.

A @riginal application filed June 29, 1910, Serial No. 569,502. Dividedand this application filed May 27, 1913.

Y Serial No. 770,110.

To all 'whom it may concern Be it known that I, WALTER WRIGHT, a citizenof the United States, residing in New York, in the county of New Yorkand State of New York, have invented certain new and useful Improvementsin Type-Writing Machines, of which the following 1s a specification.

This invention relates to an improvement intypewriters, and moreespecially 1n c onnection with carriage and platen-operatlng mechanism,and isa division of my application No. 569,502, filed June 29, 1910.

An object of this invention is to control the movement of a power-drivencarriage of a typewriter, both as to its ektent and dlrection, wherebyit can be drlven by motlve means, in either direction, to any polntdesired.

A further object of this invention 1s to operate the platen of atypewriter for hnespacing concomtantly with the return movement of amotor driven carriage, whereby as the carriage is returned each time,the paper on the platen is spaced up a l1ne automatically, so as to beready for a new l1ne of typewriting.

In the embodiment used to illustrate this invention, the carriage of thetypewrlter, which is of the Underwood type, obtains its movement frommotive means shown in the form of an electric motor which is connectedthrough the intermediary of gearing to the carriage. This gearingincludes a slip clutch which permits the carriage to be held stationaryby the usual escapement mechanism, while the motor rotates until suchtime, as at the actuation of the typewriter keys, as 1t is desired tomove the carriage. The gearing is so arranged that it normally tends todrive the carriage in a letter feeding` d1- rection, but lis providedwith a reversingmechanism embodying a shiftable clutch,l

whereby the direction of movement of the carriage, caused by the gearingand the motor` can be reversed.

The movement of the carriage in a letter feeding direction is controlledin part by the typewriter keys, which operate the usual Underwoodescapement mechanism, to permit the'motor to drive the carriagestep-bvstep as each character-key is struck. i This movement is alsocontrolled. by tabulating keys which disconnect the carriage from theescapement mechanism, so that it can be freely driven by the motor untilone of a plurality of adjustable stops on the carriage has been engagedby obstructing 'means brought 1nto play by the tabulating keys. Thesetabulating keys can also be used to bring the carriage back in a returndirection, predetermined distances, dependent on the particulartabulating key struck. This is accomplished by first depressing a keywhich shifts interponent mechanism into the path of certain projectionsmoved by the tabulating keys, so that said tabulating keys will operatesaid interponent mechanism to shift the above-mentioned clutch, which isoo nnected thereto, and thus reverse the direction of drive of thecarriage.

In order to return the carriage completely after a line has beenwritten, another key may be struck, which, unlike the tabulating keys,does not interpose any obstructions into the path of the carriage, andyet shifts the interponent mechanism to a position where it operates theclutch to reverse the drive; the escapement. mechanism being of suchcharacter that it does not interfere with the return movement of thecarriage. Provision is made whereby a single column of figures can bewritten and the carriage automatically returned by the return key whichshifts the direction of drive from the motor and at the same timeactuates platenoperating mechanism, so as to rotate the platen for thepurpose of line-spacing the paper thereon, whereby the paper will beautomatically brought to the beginning of the column and spaced up tothe next line by the striking of the return key.

Other features and advantages-will hereinafter appear.

In the accompanying drawings, Figure 1 is a fragmentary view in sideelevation, showing the mechanism in its normal relation when thecarriage can move step-bystep in a letter-feeding direction. Fig. 2 is afragmentary view similar to Fig. 1, showing the control key actuated toshift the interponent mechanism into the path of the tabulating keymechanism, so that the latter can shift the clutch and actuate theplaten. Fig. 3 is a View similar to Figs. 1 and 2, showing the. returnkey actuated so as to completely return the carriage and concomitantlyoperate the platen for line-spacing.

` Fig. 4 is an enlarged fragmentary top plan opposite side to that shownin Fig. 2.

Referring more particularly to the separate parts of this invention asembodied in the form shown in the drawings, and as applied to anUnderwood machine, l indicates keys which operate levers 2 to swingthrough the intermediary of bell cranks 3 type bars 4, so that thelatter will strike rearwardly against the front side of a platen 6mounted to rotate on a carriage 7, which in turn is mounted to slideback and forth in the usual manner on one or more tracks or rails 8.Each of the type bars 4 is provided with a heel 9, which is adapted toengage a universal bar 10 when any one of the type bars is operated, sothat the latter will shift back and forth with the aid of aspring-pressed arm 11, a pair of pawls 12 and 13, so as to permit anintermittent rotation of an escapement wheel 14 withl which the pawlsengage.

The escapement wheel 14 is loosely mounted, but connected to anescapement pinion .15, by one or more pawls 1G, in such a manner as topermit the rotation of the pinion 15 in-one direction but to prevent itsrotation in the opposite direction, unless the pawls,12 and 13 permitthe escapement wheel 14 to rotate. Inasmuch as a rack 17 normallyengages the escapement pinion 15 and is connected to the 'carriage, thisarrangement will permit the letter-feeding movement of the carriagestep-by-step at the actuation of each key, and will also permit thereturn movement of the carriage, without he actuation of the escapementwheel, inasmuch as the pinion 15 is free to rotate in a return directionrelative to the escapement wheel. The carriage 7 in this instance, istraversed by a motor 18 which is shown in the form of an electric motor,but might be ofl any other suitable type so long as it will give thepower necessary to move the carriage. The motor 18 is connected to the`carriage 7 so as to traverse the same through the intermediary ofgearing, indicated in general by the numeral 19.

Considering the specific type of gearing shown, it will be seen that themotor 18 is provided with a shaft 20 to which are connected clutch arms21, which engage internally of a friction drum 22, so as to form a slipfriction clutch which will permit the rotation of the motor 18 while thecarriage remains stationary when held so by the eseapement mechanism.The clutch drum 22 is connected to a bevel gear 23, which meshes with abevel gear24 on a shaft 25, on the opposite end of which is provided abevel gear 26 meshing with a pair of bevel gears 27 and 28, both ofwhich are loosely mounted on a shaft 29. Either of the bevel gears 27 or28 is capable of being connected in driving relation with the shaft 29by means of A a double clutch 30,.which is splined on the shaft 29 andis provided with upper and lower teeth capable of engaging correspondingteeth in the gears 27 and 28 so that when the shaft 29 is driven, itwill in turn drive a gear 31 provided adjacent its upper end, so that arack 32 meshing with said gear 31 may be driven in either direction. Therack 32 is secured to the carriage 7 in any suitable manner, so that themovement of this rack will be transmitted to the carriage, thus formingthe completing unit in the chain of gearing connecting the motor 18 withthe carriage 7.

The clutch is normally in engagement with the gear 28, so that the shaft29 will be rotated in such a direction as to tend to move the carriage 7in a letter-feeding direction, which movement however is only permitted`When the escapement mechanism is operated or released through the typekeys 1, or other means to be described. In order to reverse thedirection of the carriage, the clutch 30 may be shifted up intoengagement with the bevel gear 27 so as to connect this gear in drivingrelation with the shaft 29 by means of a lever 33 which has a pin 34engaging in a groove 35 provided in the clutch 30. The other arm of thelever is connected by a link 36 to a frame 37 which, in fact, is acomposite leve;` embodying a pair of lever arms 38 pivoted at 39 andconnected by a cross bar 40 at one side. The opposite ends of the leverarms 38 are provided with arcuate slots 41, in which is adapted to slidea normally ineffective interposable universal bar 42, so as to renderthe clutch capable of being operated by tabulating keys 43 through theintermediary of the lever frame 37 and the connecting linkages, therebyforming a portion of the interponent mechanism through which thetabulating keys may operate the clutch.

The tabulating keys 43 are mounted on levers 44 which are pivotedintermediate their ends and are adapted to engage vertical bars 45 attheir rear ends, so as to raise the upper ends of the latter topositions where they will obstruct the movement of the car.- riage 7 byengaging with any one of a plurality of stops 46 adjustably mounted on.a rack 47 which is secured tothe carriage 7 in any suitable manner. Itwill be seen that when the bar 42 is shifted to its innermost positionnearest the pivot point 39 of the lever frame 37, it Will overlie aseries of projections or lugs 48, one of which is mounted on each of thebars 45 so that when one of the tabulating keys 43is actuated, if.

the bar 4 2 is superposed above this projection, the lever frame 37 willbe lrocked so as to shift the clutch from the position indicated in Fig.5 to a position in which it will connect the gear 27 in driving relationwith the shaft 29, (Fig. 3) so that the carriage 7 Will be traversed ina return direction, that is to say, in a direction opposite to aletter-feeding direction. The lever frame 37 and the clutch will beautomatically returned to their normal position by means of acompression spring 49 when the pressure on the tabulating keys has beenreleased. Of course it is to be understood thatthe tabulating keys 43are used more generally to cause the carriage to run in a letter-feedingdirection to predetermined positions, determined by the stops 46 and theparticular tabulating key struck, so that the machine can be used intabulating columnsof typewritten matter. In this case, it is of coursenecessary to relieve the carriage of the restraining effect caused bythe escapement mechanism. For this purpose, the bars 45 are providedwith projections or lugs 50, any one of which is adapted to engage auniversal bar 51 on a lever 52 connected to a link 53, so as to rock alever 54 carrying a roller 55, which underlies the rack 17, so as tolift said rack from engagement with the escapement pinion l5.

Inasmuch as the tabulating mechanism is normally used for forward orletter feeding movement of the carriage, the bar 42 is normally in theposition shown in Figs. 1 and 7, where it is held by a rock shaft 56having a pair of crank arms 57 provided with slots through which the bar42 extends.

The rock shaft 56-is also provided With an arm 58 to Which'is connecteda link 59 join# ing said rock shaft 56 with another cranked rock shaft60, which is connected through the intermediary of a link 61 to a bellcrank lever 62 mounted at the front of the machine and provided with akey 63 so as to form one of the bank of keys of the typewriter. The key63 is normally held in its raised position by a spring 64 which isconnected to the link 61, and Inormally forces said link to its foremostposition. It will thus be seen that the key 63 forms a control,

which, on being depressed, will shift the bar 42 into a positionsuperposed above the lugs 48, whereby the tabulating keys 43, instead ofacting to cause a movement of the carriage in a letter feedingdirection, Will, throughl the reversal of the clutch 30, cause a returnmovement of the carriage 7.

In order to relieve the operator of the Written,

-this connection that necessity of holding the key 63 depressed Whileselectin the particular tabulating key to be struck, t ere is provided alock or latch 65, which has a notch 66y adapted to engage a pin 67 onthe key lever 62, so as to lock the key 63 in its depressed position. Aspring 68 acts to force the notch 66 into engagement with the pin 67.The key 63 can be readily released by shifting the lock 65 against thetension of the spring 68.

The stops 46 are `of a thickness less than that of a letter space, sothat when'the carriage is arrested by one of the bars 45 through theactuation of a tabulating key 43 in a letter feeding direction, thearrest will take place at a point corresponding to one letter space, or1f numerals are being to one denomination, and'when the carriage isstopped while moving in the opposite direction, the point of rest withthe same stop and tabulating key will correspond to the next adjacentletter space or denomination. This is taken care of as illustrated inFig. 6 by designating the tabulating keys with tWo distinguishing marks,one for forward tabulating and the other for backward tabulating. Itwill be seen in if the carriage is stopped while moving in a forwarddirection when the tenth tabulating key from the right is struck, theposition of the carriage will correspond to the tens column, and whenthe same key is struck while the carriage is moving in a returndirection, the position of the carriage will correspond to the unitscolumn.

It will be seen that while the tabulating keys are very useful forreturning the carriage to different predetermined points according tothe particular tabulating key struck and the stop on the carriage, it isoften desirable to completely return the carriage to its initialposition from'which it can be once more fed stepby-step in a letterfeeding direction. For this purpose, there is provided a special key 69which is similar to the tabulating keys and secured to a lever 70pivoted intermediate its ends, the said lever 70 being adapted toactuate a vertical bar 71 somewhat similar to the bars 45 and providedtoward the top with a lug 72 forming a means for operating the bar 42when the latter is superposed above said lug, so that the clutch 30 canbe shifted so as to reverse the direction of travel of the carriage. Thebar 71 however differs from the bar 45 in that it is not necessary toprovide it with a lug corresponding to the lugs 50, because of the factthat the pinion 15 is permitted to rotate in a direction'permitting thereturn movement of the carriage by the slipping of the pawls 16.Further, the bar 71 is not of suflicient length to project into such aposi# tion that it will obstruct the movement of the carriage byengagement with any of the stops 46. This feature will be clearly seenby reference to Fig. 7.

As has been seen before, the bar 42 is not normally superposed above theprojections 48 and 72, so that the bar 71 would be unable to actuate theinterponent mechanism to reverse the drive from the motor to thecarriage by shifting the position of the clutch 30 unless some means isprovided for shifting the bar 42 to a position in the path of the lug72. However, the lever 70 on which the return key 69 is mounted isconnected by a link 73 to a rocker cam 74 pivotally mounted injuxtaposition to the link 61, s6 that the cam edge thereof will engage apin 75 provided on said link 61, so as to force said link 61 toward therear when the key 69 is depressed, and thus shift the bar 42 to aposition above the lug 72, whereby the key 69 may shift the clutch 30through the interponent mechanism. In order not to V disturb the controlkey 63 during this actuation of the link 61 by the return key 69 saidlink 61 is connected by a pin-and-slot connection 76 to the lever 62 ofthe key 63. In order that the bar 42 may be positively shifted to aposition above the lug 72 before said lug is raised, there is allowed acertain amount of play, as will be seen by reference to Fig. 7, betweenthe rear end of the lever i 70 and the bottom end of the bar 71, the

bar 71 being supported by a pin-and-slot connection 77 which limits itsdownward movement.

In cases where it is desired to obtain a return motion of the carriagethrough the simple depression of a key, it is also desirable to have theplaten actuated automatically concomitantly with the return movement ofthe carriage, so as to provide for line spacing. This is accomplished inthis case by connecting the platen-rotating mechanism so that it will beoperable whenever the interonent mechanism is shifted to a position suchthat the clutch can be reversed. For this purpose the bar 40 on thelever frame 37 is connected by a link 78 to an arm 79 splined on a shaft79a on the carriage, to

which shaft is fixed a rock arm 79b which actuates a link 80 supportedat its opposite end by an arm 81 swingingly mounted on the platen shaft82. of the platen 6. The link 8O carries a spring-pressed pawl 83 whichengages a ratchet wheel 84 connected to the platen 6, so as to rotatethe same. It will thus be seen that the carriage is moved in a returndirection by a reversal of 'the clutch, and that the platen at the sametime will be rotated so as to bring the paper thereon up to a freshline. Of course the usual linespacing mechanism found on the Underwoodmachine can be used just the same. This line-spacing mechanism usuallyembodies a handle or lever 86, which operates to force rearwardly aspring-controlled slide 87 carrying a pawl 88 which co-acts with theratchet Wheel 84. The aforementioned handle or lever is also usuallyeffective to return the carriage.

As stated above, the lever frame 37 and the mechanism connected theretoare returned to normal position by the compression spring 49, whichlikewise acts to turn the `platen-actuating mechanism to its normalposition. Springs 85 return the bars 45 and 71 to their normal depressedposition, and thus raise the front ends of the tabulating keys 43 totheir normal positions.

In the operationy of the device, it will be seen that as the characterkeys 1 are struck, the type bars 4 will strike the platen 6 actuatingthe escapement mechanism so as to permit the carriage to movestep-by-step under the impulse of the motor 18 in the letter feedingdirection, inasmuch as the clutch 30 normally connects the shaft 29 indriving relation with the gear 28. If it is desired to return thecarriage partially for any purpose to a predetermined point, it ismerely necessary to strike one of the tabulating keys 43 after havingfirst, how ever, depressed the control key 63 to a position where itwill force the bar 42into the path of the projections 48 onthe bars 45.The depression of any one of the tabulating keys will thus raise thecorresponding projection 48 so that it willrock the frame 37, liftingthe clutch 30 through the intermediate linkages, so as to connect theupper bevel gear 27 in driving relation with the shaft 29, and thusreverse the direction of movement of the/carriage 7, until theparticular tabular stop 46comes in engagement with the particular bar 45actuated by the depressed tabulating key 43. The carriage will thenbe'stopped in its motion while the motor 18 still rotates if desired, inview of the fact that the slip clutch comprising the drum 22 and theclutch arms 21 permits this relative movement. This slip clutch alsocomes 'f into play while the carriageis held from movement in aletter-feeding direction by the escapement mechanism. If the desiredreturn movement has been obtained, the carriage can again be traversedin a forward or letter-feeding direction after thekey 63 has beenreleased by manipulating the lock 65. If any one of the tabulating keysis struck, after this operation, the carriage will run forward apredetermined amount until one of the stops carried thereby en gages thecounter-stop 45 corresponding to the particular tabulating key struck,the clutch in the meantime having been forced down by the compressionspring 49 returning the connecting linkages.

If it is desired to completely return the carriage, it is merelynecessary to depress the key 69 without a previous depresison of the key63 as the key 69 is connected, so as /f'ing the extent of movement ofsaid carriage ywill not only shift the clutch so as to re- .Y

verse the direction of travel ofthe carriage,

but will also actuate the ratchet mechanism for rotating the platen soas to bring the paper thereon up "co/a new line.

Variations may be resorted to within the scope of the invention,andportions of the improvements may be used without others.

Having thus described my invention, I claim:

1. The combination with a typewriter carriage, of a motor, reversiblegearing connecting said motor to said carriage, whereby said carriagecan be driven in either direction by said motor, letter-feed mechanismcontrolling the forward travel of the carriage, said reversible gearingincluding a pair of driving elements rotating in opposite directions, aclutch for connecting either one of said elements in driving relationwith said carriage, stops, keys to 0perate said stops, means operated bythe said keys to release the carriage from letter-feed control, anda keymovable into and out of position to cause a reversal of the clutchconnection when a stop key is operated.

2. The combination, with a typewriter carriage; of a motor; reversiblegearing `connecting said motor to said carriage,fto

drive the latter from the former in either forward or reverse direction;said gearing including a pair of driving elements rotating in oppositedirections; a clutch normally connecting the forward-driving element 1ndriving relation with said carriage, but" shiftable to disconnect thatelement and conneet the reverse-driving element; means for shifting saidclutch; a stop on said carriage; a counter-stop to co-act therewith; anda key for simultaneously moving said counterstop into eifective positionand operating said clutch-shifting means.

3. The combination with a typewriter carriage, of a motor, reversiblegearing connecting said motor to said carriage, whereby said carriagecan be driven in either direction by said motor, said reversible gearingincluding a pair ofdriving elements rotating in opposite directions, aclutch for connecting either one of said elements in driv- ,ing relationwith saidl carriage, means for shifting said clutch, and means forrendering said last-mentioned means operative or inoperative to shiftsaid clutch.

4. The combination with a typewriter carriage, of a motor normallyconnected to drive said carriage in one direction, keys, ineans operatedby Said keys forreversing vthe movement of said carriage, means con-,trolled by said keys for selectively determinin either direction, acontrolling, key, and means operated thereby toprevent the operation ofsaid reversing means by said first-named keys.

5. The combination with atypewriter carrlage, ofl a motor, reversiblegearing connectingv said motor to said carriage, whereby said carriagecan be driven in either direction by said motor, means for restrainingsaid carriage troni movement in one direction, and permitting movementof said carriage m the opposite direction, a key operable to release thecarriage from said restraining means and operate said reversible gearingto reverse the direction of the car'- riage travel, a second key, andmeans operated thereby to prevent operation of the reversible gearing bysaid first-mentioned key.

6. The combinationv with a typewriter carriage, of a motor, reversiblenecting said motor to said carriage, whereby said carriage can be drivenin either direction by said motor,'means for controlling said gearing togovern the movement of said carriage, means for restraining saidcarriage from movement in one direction, and permitting movement of saidcarriage 1n the opposite direction, one or more keys for releasing saidrestraining means and reversing said gearing, and a key settable toprevent reversal of said gearing by said releasing keys.

7. The combination, with a typewriter carriage; of a motor; connectionsbetween said motor an'd said carriage for driving the latter from theformer; an escapement normally restraining .the forward travel of thecarriage; keyoperated type-bars; means operated by said type-bars foractuating said escapement; and tabulating keys operable to release saidcarriage from said escapement, said driving connections including meanssettable to cause the,drive of said carriage by said motor to take placeeither in forward or reverse' direction.

8. The combination with a a rack'carried by said carriage, a gearmeshing with said rack, a shaft for driving said gear, a pair of bevelgears loosely mounted on-said shat, a bevel gear constantly meshing withboth lobse bevel gears and adapted to constantly drive them in oppositedirections, a motor for driving said last mentioned bevel gear, and aclutch splined on said shaft for connecting either of said loose bevelgears in driving relation with said shaft, whereby the direction ofrotation of said shaft may be reversed and thus the direction of travelof said carriage and said rack reversed.

9. The combination with a carriage, of a rack carried by said carriage,a gear meshing with said rack, a shaft for driving said gear, a pair ofbevel gears loosely mounted on said shaft, a bevel gearconstantlymeshcarriage, of

gearlng conshaft, whereby ing with both loose bevel gears and adapted toconstantly drive them 1n opposite dlrec- Ations, a motor forvdrivingsaid last mentioned bevel gear,

' a rack Vcarried vby said carriage, a gear meshing with said rack, ashaft for driving said gear, a pair of bevel gears loosely mounted. onsaid Shaft, a bevel gear meshing with each of said pair of bevel gearsand adapted to drive said bevel gears in opposite directions, a motorfor driving sald last mentioned bevel gear, a clutch splined on saidshaft for connecting either of said pair l of bevel gears in drivingrelation with said shaft, whereby the direction of rotation of saidshaft may be reversed and thus the d1- rection of travel of saidcarriage and said rack reversed, a key for shifting said clutch, andV akey for enabling the shifting of said clutch by said first-mentionedkey.

11. The combination with a carriage, of a rack carried by said carriage,a gear meshing with said rack, a shaft for driving said gear, a pair ofbevel gears loosely mounted on said shaft, a bevel gear meshing witheach of said pair of bevel gears and adapted to drive said bevel gearsin opposite directions, a motor for driving said last mentioned bevelgear, a clutch splined on said shaft for connecting either of said pairof bevel gears in driving relation with said shaft, whereby thedirection of rotation of said shaft may be reversed and thus thedirection of travel of said carriage and said rack reversed, a leverconnected to said clutch, an interponent bar connected to said lever, akey lever, and a bar operated by said key lever having a projecting lugadapted to engage said interponent bar to shift said clutch through theintermediary of said first-mentioned lever.

12. The combination with a carriage, of a rack carried by said carria e,a gear meshing with said rack, a shaft or driving said gear, a pair ofbevel gears loosely mounted on said shaft, a bevel gear meshing witheach of said pair of bevel gears and adapted to drive said bevel gearsin opposite directions, a motor for driving said last mentioned bevelgear, a clutch splined on said shaft for connecting either of said pairof bevel gears in driving relation with'said shaft, whereby thedirectionl of rotation of said shaft may be reversed and thus thedirection vof travel of said carriage and said rack reversed, a leverconnected to said clutch, an interponent bar connected to said lever, a

through the intermediary of said-ilrstmenl tioned lever, and means forshifting said interponent bary into the path of said lug.

13. The combination with a carriage, of a `rack carried by saidcarriage, a gear meshing with said rack, a shaft for driving said gear,a pair of bevel gears loosely mounted on said shaft, a bevel gearmeshing with each of said pair of bevel gears and adapted to drive saidbevel gears in opposite dlrections, a motor for driving said lastmentioned bevel gear, a clutch splined on said shaft for connectingeither of said pair of bevel gears in driving relation with said shaft,whereby the direction of rotation of said shaft may be reversed and thusthe direction of travel of said carriage and said rack reversed, a leverconnected to said clutch, an interponent bar connected to said lever, akey lever, a bar operated by said key lever having a projecting lugadapted to drive said bevel gears in opposite direct1ons, a motor fordriving said last mentioned bevel gear, a clutch splined on said shaftyfor connecting either of said pair bf bevel gears in driving relationwith said shaft7 whereby the direction of rotation of said shaft may bereversed and thus the direction of travel of said carriage and said rackreversed, a lever frame, an interponent bar adjustably connected to saidlever frame, a series of tabulating key levers, and a series oftabulating bars operated by said key levers and having projections orlugs adapted, by engagement with said interponent bar, to rock saidlever frame and thus shift said clutch.

15. The combination -with a carriage, of a rack carried by saidcarriage, a gear meshing with said rack, a shaft for driving said gear,a pair of bevel gears loosely mounted on said shaft, a bevel gearmeshing with each of said pair of bevel gears and adapted to drive saidbevel gears in opposite directions, a motor for driving said lastmentioned bevel gear, a clutch splined on said shaft for connectingeither of said pair of bevel gears in driving relation with said shaft,whereby the direction of rotation of said shaft may be reversed and thusthe direction of travel of said carriage and said rack reversed, a leverframe, an interponent bar adjustably connected to saidl lever frame, aseries of tabulating key levers, a series of tabulating bars operated bysaid key levers and having projections or lugs adapted, by

engagement with said interponent bar, to

on said shaft, a beve'l gear meshing with each of said pair of bevelgears and-adapted to drive said bevel gears in opposite directions, amotor for driving said lastmentioned bevel gear, a clutch splined onsaid shaft for connecting either of said pair of bevel gears in drivingrelation with said shaft, whereby the direction of rotation of saidshaft may be reversed and thus the direction of travel of said carriageand'said rack reversed, a lever frame, an interponent bar adjustablyconnected to said lever frame, a series of tabulating kev levers, aseries of tabulating bars operated bysaid key levers and havingprojections or lugs adapted, by engagement with said interponent bar, torock said lever frame and thus shift said clutch, and spring meansnormally holding said leverframe and said clutch in a certain position.

' 17. The combination with a carriage, of

` a rack carried by said carriage, a gear meshing with saidrack, a shaftfor driving said gear, a pair of bevel gears loosely mounted on saidshaft, a bevel gear meshing with each of said pair of bevel gears andadapted todrive said bevel gears in opposite directions, a motor fordriving said last mentioned bevel gear, a clutch splined on said shaftfor connecting either of said pair of bevel gears in driving relationwith said shaft, whereby the direction of rotation of said shaft may bereversed and thus the direction of travel of said carriage and said rackreversed, a lever frame, an interponent bar adjustably connected to saidlever frame, a series of tabulating key levers, a series of tabulatingbars operated by said key levers and having projections or lugs adapted,by engagement with said `interponent bar, to rock said lever frame andthus shift said clutch, a key lever for shifting said interponent barinto the path of said lugs, and spring means for shiftingsaidinterponent bar out of the path of said lugs.

18. The combination with a carriage, of a motor for traversing saidcarriage, gearing connecting said motor 'with said carriage andincluding a reversing mechanism, whereby the direction of travel of saidcarriage may be changed, means for normally holding said reversing meansin a certain position, whereby said carriage will be normally driven ina forward direction, tabulating keys for causing the carriage to runforward, and means operated by the tabulating keys for changing theposition of said reversing mechanism and causing the carriage to runbackward.

19. The combination with a carriage, of a motor for traversing saidcarriage, gearing connecting said motor with said carriage and includinga reversing mechanism, whereby the direction of travel of said carria-gemay be changed, means for normally holding said reversing means in acertain position, whereby said carriage will be normally driven in aforward direction, means for changing the position of said reversingmechanism, said last-mentioned means being frame connected to saidreversing mecha- 1 nism and adapted to operate the same, an interponentbar connected to said lever frame, a series of tabulating key levers,and a series of tabulating bars operated by said key, levers and havingprojections capable of operating said lever frame through theintermediary of said interponent bar when said interponent bar lies inthe path of said projections.

21. The combination with a carriage, of a motor for traversing saidcarriage, gearing connecting said motor to said carriage,

includinga reversing mechanism, a lever frame connected to saidreversing mechanism and adapted to operate the same, an interponent barconnected to said lever frame, a series of tabulating key levers, aseries of tabulating bars operated by said key levers and havingprojections capable of operating said lever frame through theintermediary of said interponent bar when said interponent bar lies inthe path of said projections, and means for shifting said interponentbar into the path of said projections. Y

22.?The combination with a carriage, of a motor for traversing saidcarriage, gearingconnecting said motor to said carriage, including areversing mechanism, a lever frame connected to said reversing mechanismand adapted to operate the same, an interponent bar connected to saidlever frame, a series of tabulating key levers, a series of tabulatingbars operated by said key levers and having projections capable ofoperating said lever frame through the intermediary of said interponentbar when lframe, a series of tabulating key levers,

said interponent bar lies in the path of said projections; saidinterponent bar being normally held out oi the path of said projections,and a key-operated mechanism for shifting said interponent bar into thepath of said projections. l

23. The combination with a carriage, of a motor for traversing saidcarriage, gearing connecting said motor to said carriage,- including areversing mechanism, a lever frame connected to said reversing mechanismand adapted to operate the same, an interponent bar connected to saidlever al? series of tabulating bars operated by said key levers andhaving projections capable of operating said lever frame throught" 4heintermediary of said interponent bar w'en said interponent bar lies inthe path of said projections; said interponent bar being normally heldout of the path of said projec tions, a key-operated mechanism forshifting said interponent bar into the path of said projections, and areturn key acting to l lsuccessively shift said interponent bar and rocksaid lever frame, so as to actuate said reversing means to return saidcarriage.

24. The combination with a carriage, of a motor for traversing saidcarriage, keys for controlling the movement of said carriage, meansoperated by said keys for controlling the direction` of movement of saidcarriage by said motor, and key-operated mechanism to prevent theoperation of said direction controlling means when said keys areoperated.

25. The combination, with a carriage, of a motor operable to drive thecarriage in both letter-feeding direction and return; al return key;reversing mechanism operated thereby for causing said motor tocompletely return said carriage to the starting point of its movement inletter-feeding direction; and tabulating mechanism capable of actuatingsaid reversing mechanism to cause y a partial return movement of saidcarriage by said motor.

26. The combination with a carria e, of means for returning saidcarriage a ter a movement in letter-feeding direction, a return key foractuating said means to com pletely return said carriage to the startingpoint of its movement in such direction, tabulating keys capable ofactuating said returning means independently of said return key to causea partial return movement of said carriage, said tabulating keys actingnormally to cause a movement of said car riage in letterefeedingdirection, and a special key for enabling said tabulating keys to causea partial return of said carriage by said returning means.

27, The combination with a carriage, of a motor, driving connectionsbetween the motor and carriage for returning said carriage,interp'onentmechanism for control ling said connections, and tabulatingkeys' for acting on said interponent mechanism to cause the motor toreturn said carriage.

28. 'Ihe combination with a carriage, of

means for traversing said carriage, interponent mechanism. forcontrolling said means, tabulating keys for actuating said nterponentmechanism, and a key for shifting said interponent mechanism into thesphere of operation of said tabulating keys. 29. The combination with acarriage, of means for `returning said carriage, interponent mechanism4for controlling said means, tabulating keys for acting on saidinterponent mechanism to return said carriage, said tabulatintg keysinterrupting the return movement o said carriage at predetermined pointsin its travel, and a key for actuating said interponent mechanism so asto completely return said carriage.

30. The combination with a carriage, of means for traversing saidcarriage, in-

-terponent mechanism for controlling said means, tabulating keys foractuating said interponent mechanism, a` key for shifting saidinterponent mechanism -into the sphere of operation of said tabulatingkeys, and a lock for said last-mentioned key. l 31. The combinationwithl a carriage, of means for traversing said carriage, interponentmechanism for controlling said means, tabulating keys for actuating saidinterponent mechanism, a key for shifting said interponent mechanisminto the sphere of operation of said tabulating keys, and an automaticlock for catching` and holdin said last-mentioned key in its depresseposition.

32. The combination with a carriage, of a motor for traversing saidcarriage, gearing connecting said motor to said carriage,

including reversing mechanism whereby the direction of travel of said'carriage can be changed, tabulating keys, yconnections between saidtabulating keys and sa-id reversing mechanism, whereby the latter may beshifted actuated by the former, said connections being normallyineft'ective for the purpose of shifting said reversing mechanism, and akey for rendering said connections effective for the purpose of shiftingsaid reversing mechanism.

33. The combination with a carriage, of a motor for traversing saidcarriage, gearing connecting said motor to said carriage, includingreversing mechanism whereby. the direction of travel of said carriagecan be changed, tabulating keys, connections between said tabulatingkeys and said reversing mechanism, whereby the latter may be shifted bythe former, said connections being normally ineffective for the purposeof shifting said reversing mechanism, a key for rendering saidconnections effective for the purpose of shifting said reversingmechamsm, and a lock for automatically holding said connections in theireffective relation.

34.'The combination with a carriage,l of a motor for traversing saldcarriage, gearlng connecting said' motorto sald carriage 1nl cluding areversing mechanism, means normally ineffective for'actuating saidreversing mechanism, a link connected to said means for rendering saidmeans effective, a pin on said link, a pivoted cam rocker engaging saidpin, a -link connected to said cam rocker, and a key lever connected tosaid link to .operate said cam rocker.`

35. The combination with a carriage, of a motor for traversing saidcarriage, gearing connecting said motor to said carriage including a\reversing mechanism, means,nor mally ineffective for actuating ingmechanism, a link connected to said means for rendering said meanseffective, a pin on said link, a pivoted camV rocker engaging said pin,a link connected to said cam rocker, a key lever connected to said linkto operate said cam rocker, and a bar operated by said key lever foractuating said means.

36. The combination with a carriage, of a motor for Vtraversingdsaidcarriage, gearing connecting said motor to said carriage includingareversing mechanism, means normally;V ineffective for actuating saidreversing mechanism, .a link connectedto said means for rendering saidmeans effective,

a pin on said link, a pivoted cam rocker engaging said pin, a linkconnected to' said cam rocker, a .key lever connected `to said link tooperate said cam rocker, and a bar operated by said key lever foractuating said means; said bar and said key lever having a lost motionconnection for permitting vthe prior actuation of said link to rendersaid means effective before said bar is actuated by said key lever.

, 37. The combination with a carriage, of a motor for traversing saidcarriage, gearing vconnecting said motor to said carriage, in-

cluding a reversing mechanism whereby the ,direction of travel of saidcarriage can be changed, normally ineffective means for shifting saidreversing mechanism, a key for rendering said means effective,connections between said key and said means, a returnkey lever foractuating said means, and means for operating said connections from saidreturn key lever, to render said firstmentioned means effective.

38. The combination with a carriage, of a motor for traversing saidcarriage, gearing connecting said motor to said carriage, including areversing mechanism whereby the direction of travel of said carriage canbe changed, normally ineii'ective means for shifting said reversingmechanism, 'a key for rendering said means eiiective, connecsaidreverswith said lock.

tions between said key and said means, a return key lever for actuatingsaid means, and means for operating said connections from said returnkey lever, to render said first-mentioned means eective; saidconnections having a lost motion therein, whereby they can be operatedby said key lever without disturbing said key.

39. The combination with a carriage, of a motor for traversing saidcarriage, gearing connecting said motor to said carriage, including areversing mechanism, whereby the direction of travel of said carriagemay be changed, a lever frame connected to said reversing mechanism,means for operating said lever frame, a bar forming an interponentbetween said means and said lever frame, a link connected to said bar,and a key for operating said link, said link and sald key having apin-and-slot connection between them, permitting a relative movement ofsaid link with respect to said key.

40. The combination with a carriage, of a motor for traversing saidcarriage, gearingspring for returning said link to its normalpos1tion.

41. The combination with a carriage, of a motor for traversing saidcarriage, gearing connecting said motor to said carriage, ncluding areversing mechanism, whereby the direction of travel of said carriagemay be changed, a lever frame connected to said reversing mechanism,means for operating said lever frame, a bar forming an interponentbetween said means and said lever frame, a

link connected to said bar, a key for operating said link, said link andsaid key having a pin-and-slot connection between them, permitting arelative movement of said link with respect to said key, a lock for saidkey, a key lever for actuating said lever frame, and connectionsxbetweensaid key lever and said link for shifting said interponent bar whilesaid key remains out of engagement 42. The combination with a carriage,of a motor for traversing said carriage, gearing connecting said motorto said carriage, including a reversing mechanism, whereby the directionof travel of said carriage may be changed, a lever frame connected tosaid reversing mechanism, means for operating said lever frame, a barforming an interponent between said means and said lever frame, a linkconnected to said bar, a key for operating said link, said link and saidkey having a pin-and-slotconnectlon between them, permitting a relativemovement of said link with respect to said key, a lock for said key, akey lever for actuating said lever f rame, a pin on said link, a camrocker engagmg sald pin, and a link connecting said key lever to saidcam rocker, whereby said interponent bar may be actuated by said keylever.

43. The combination with a carriage; of a motor; driving connectionsbetween the motor and the carriage, including a device for reversing thedirection of drive; a platen on said carriage; means for line spacingsaid platen; a key; and means actuated by said key for positivelyoperating said reversing device and said line spacing means.

44. The combination with a carriage; of a motor; driving connectionsbetween the motor and the carriage, including a device for reversing thedirection of drive; a platen on said carriage; means for line spacingsaid platen; a key; and means actuated by said key for positively andsimultaneously operating said reversing device and said line spacingmeans.

45. The combination with a carriage, of motive means for returning saidcarriage after movement in letter feeding direction, a platen on saidcarriage, means for operating said platen for line spacing, a key forpositively operating said line spacing means and for causing saidcarriagereturning means to act ooncomitantly therewith, and a key forgoverning the effectiveness of said first-mentioned key to so operatesaid platenoperating means.

46. The combination with a carriage, of motive means for returning saidcarriage after movement in letter feeding direction, a platen on saidcarriage, means for operating said platen for line spacing, a key forcausing both of said means to act concomitantly, a key for governing theconnection of said first-mentioned key with said platen-operating means,and a lock for said last-mentioned key.

47. The combination with a carriage, of a motor to drive the carriage, aplaten on said carriage, means for rotating said platen, type bars forstriking said platen, character keys for operating said type bars, saidkeys being arranged in a bank, a key located in juxtaposition to saidbank of keys for actuating said platen-rotating means, and meansoperated by said key to reverse the connection between the motor andCarriage and cause the motor to return the carriage.

48. The combination with a carriage, of a platen on said carriage, meansfor rotating said platen, type bars for striking said platen. characterkeys for operating said type bars, said keys being arranged in a bank, akey located in juxtaposition to said bank of keys for actuating saidplaten-rd' tating means, normally ineffective connections between saidkey and said platen-rotating means, and a key located in juxtapositionto said bank of keys for rendering said connections effective.

49: The combination with a platen, of means for rotating said platen forline-spacing, a lever frame connected to said means, an interponent barshiftable on said lever frame from an ine'ective position to aneffective position, one or more key levers, bars operated by said keylevers to actuate said lever frame through the intermediary of saidinterponent bar, said interponent bar being normally located out of thesphere of operation of said last-mentioned bars, and means for shiftingsaid interponent bar.

50. The combination with a platen, of means for rotating said platen forline-spacing, a lever frame connected to said means, an interponent barshiftable on said lever frame from an ineffective position to aneffective position, one or more key levers, bars operated by said keylevers to actuate said lever frame through the intermediary orf saidinterponent bar, said interponent bar being normally located out of thesphere of operation of said last-mentioned bars, means for shifting saidinterponent bar, and means for locking said interponent bar in itseffective position.

51. The combination with a carriage, of a platen rotatably mounted onsaid carriage, type bars coperating with said platen, keys for operatingsaid type bars, means for traversing said carriage, means for rotatingsaid platen for line-spacing, keys in juxtaposition to saidfirst-mentioned keys for controlling both of said means, and stopsselectively operable by said keys to arrest the carriage Y at differentpositions.

52. The `combination with a typewriter carriage, of a constantlyrevolving motor, means connecting said motor to said carriage, saidconnecting means including a friction clutch, key-controlledletter-feeding mechanism for said carriage, keys operable to release thecarriage from said letter-feeding mechanism, means operated by said keysto cause the motor to return the carriage, and a controlling key torender said lastmentioned means inelfective.

53. The combination with a typewriter carriage, of a 'constantlyrevolving motor. means connecting said motor to said carriage, saidconnecting means including a friction clutch, key-controlledletter-feeding mechanism for said carriage, a reversing gear betweensaid friction clutch and said carriage, a. key to operate said reversinggear and cause the motor to return the carriage, and a controllingdevice settable to prevent said key from operating the reversing gear.

54. 'lhe combination .'with a typewriter carriage, of a constantlyrevolving motor, means connecting said motor to said carriage, saidconnecting means including a friction clutch, key-controlledletter-feeding mechanism for said carriage, a lreversing gear betweensaid friction clutch and said carriage, and a tabulating key havingmeans to reverse said reversing gear. 4

55. In a typewriting machine, the combination with a letter-feedingcarriage, of a set of decimal tabulating keys, decimal stops connectedthereto, column stops, means driving the carriage in letter-feedingdirection,

and key-controlled means for enabling any of said decimal keys to causethe carriage to be driven in the opposite direction, and to enable thedecimal stops and the column and connected to clutch.

stops to arrest the return movement of the carriage.

56. Ina typewriting machine, the combination with a letter-feedingcarriage, of a set of decimal tabulating keys, decimal stops connectedthereto, column stops, means driving the carriage in letter-feedingdirection, key-controlled means for enabling any ofsaid decimal keys tocause lthe carriage to be driven in the opposite direction, and toenable the decimal stops and the column stops to arrest the returnmovement of the carriage, and line-feeding devices also operable by anyof said decimal keys at such return movement of the carriag 57. In atypewriting machine, the combination with a letter-feeding carriage, ofa constantly revolving motor, means connecting said motor to saidcarriage, said connecting means including a friction clutch and alsoincluding a reversible clutch, a set of'v decimal tabulating keys, a setof ,vertical rods connected thereto and provided with decimal stops andwith shoulders, column stops, a key, a rock shaft, arms movable thereby,connections between said rock shaft and said key, a normally silenceduniversal bar movable 'by said arms to eii'ective position, over theshoulders on the stop rods, and a lever operated by said universal barshift said shiftable 58. In a typewriting machine, the combination witha letter-feeding carriage, of a constantly revolving motor, meansconnecting said motor to said carriage, said connecting means includinga friction clutch and also including a reversible clutch, a key forreturningthe carriage to the beginning of a new line of writing,tabulator keys for returning the carriage to different column positions,and means actuated by each of said keys for operating said reversibleclutch.

59. In a typewriting machine, the combination with a letter-feedingcarriage, of a constantly revolving motor, means co-innecting said motorto said carriage, said connecting means including a friction clutch andalso including a reversible clutch, a keyl feeding direction, andkey-controlled means for enabling any of said decimal keys to cause thecarriage to be driven in the opposite1 direction by said motor, and toenable said decimal stops and said column stops to arrest the returnmovement of the carriage.

61. In a typewriting machine, the combination with a carriage, of aconstantly revolving motor, means connecting said motor to saidcarriage, said connecting means including .a friction clutch and alsoincluding a reversible clutch, a key for returning the carriage to thebeginning of a new line, means actuated by `said key for operating Saidreversible clutch, and a key operable independently of said rst-namedkey to operatel the reversible clutch carriage to an intermediateposition.

62. The combination with a typewriter carriage, of a motor for drivingthe carriage in letter-feeding direction and for returning said carriageafter a movement in such direction, means connecting said motor to saidcarriage, a key, means operated thereby to determine the direction'which said motor shall drive the carriage, stops for determining theextent of the return movement of said carriage, and keys to move saidstops t0 operative position and cause the motor to return the carriage.

63. The combina-tionI with a typewriter carriage, ofa motor for drivingthe carriage in letter-feeding direction and for returning said carriageafter movement in such direction, a key for connecting the motor toreand return the l turn said carriage, and a second key settable to'render the first key ineifective for return-l ing the carriage.

64. The combination with a typewriter carriage, of a motor for drivingthe carriage in letter-feeding direction and for returning said carriageafter movement in such direction to begin a new line of writing,letter-feeding mechanism, a key for releasing the carriage from theletter-feeding in .letter-feeding direction and for returning saidcarriagel after movement in such direction` letter-feeding mechanism, akey for releasing the carriage, fiom theletter-feeding mechanismandreversing the connections of the. motor to the carriage to returnsaid carriage. and a. second key settable to prevent said level-sal andcause. the carriage to run forwardly when the lirst-mentioned key isoperated.

o6. The combination with a carriage, of a motor for driving the carriageand for returning said carriage after a movement in a letter-feedingdirection, a return key, reversing mechanism operated thereby forcausing the motor to completely return said carriage to the startingpoint of its movement in a letter-feeding direction, .and keysselectively operable to operate said reversing mechanism and cause thereturn of the carria ge to intermediate points.

6T. The combination with a carriage, of a platen rotatably mounted onsaid-carriage, a motor for driving said carriage in both directions, a.reversing clutch between the motor and carriage, means for rotating saidplaten, and keys each adapted to simultaneously operate said clutch andplaten-rotating means.

68. In a typewriting machine, the combination with a carriage andletter-feeding mechanism, of av constantly revolving motor, meansconnecting said motor to said carriage, said connecting means includinga friction clutch and also including a. reversible clutch, a set ofdecimal tabulating keys, decimal stops operated thereby, column stops, aset of vertical stop rods carrying said decimal stops, Shoulders on saidrods, a key, a normally silenced universal bar movable by said key intothe path of said shoulders, and means operated by said universal bar toshift said reversible clutch and cause al backward travel-otI thecarriage, each of said decimal keys having different designations forforward and backward tabulation, substantially as set forth.

G9. In a typewriting machine, the combination with a carriage, of columnstops settable thereon, a set of denominational stops, denominationalkeys for selectively projecting the stops of said set into the path ofthe column stops, a motor for driving the carriage, gearing between themotor and carriage comprising a reversing clutch for enabling thecarriage to be driven in either direction by the motor, escapementmechanism controlling the letter-feed movement of the carriage. meansoperated by the denominational stops for releasing the carriage from theescapement mechanism, a clutch-operating device comprising a universalbar movable into and out of position to be operated by saiddenominational keys and thereby position the clutch for returning thecarriage, and a direction controlling key connected to said universalbar, said controlling key settable to hold said universal bar either inor out of operative relation to the denomimltional keys, whereby whensaid direction controlling key is in one position the denominaitionalstops are selectively operativeto release the carriage and permit it torun forwardly to a position determined b v the operated denominationalstop, and whereby when said direction controlling key is set in anotherposition, the denominational stops are operative to actuate thereversing clutch and reverse the connections between themotor andcarriage and cause a return movement of the carriage to a positiondetermined by the operated denominational stop.

70. In a typewriting machine, the combination with a carriage and aroller platen thereon, of a line-spacing mechanism to impartline-spacing rotations to the platen, a motor, driving connectionsbetween the motor and carriage comprising a reversing clutch,key-operated mechanism to reverse said clutch for returning the carriageto position to commence a new line of writing, and connections betweensaid clutch-operating mechanism and line-spacing mechanism for causingthe latter to be operated when the clutch is reversed to return thecarriage.

71. In a typewriting machine, the combination with a carriage andletter-feeding mechanism, of a constantly revolving motor, meansconnecting said motor to said carriage, said connecting means includinga friction clutch and also including a reversible clutch, a set ofdecimal tabulating keys, a set of vertical stop rods operated therebyand provided with shoulders, decimal stops carried by said rods, columnstops, a key, a normally silenced universal bar movable by said key intothe path of said shoulders, means operated by said universal bar toshift. said reversible clutch and cause a backward travel of thecarriage, each of said decimal keys having different designations forforward and back tabulation; and a latch lever for holding said key inoperated position, said latch lever having a notch to engage a pin onthe key lever.

72. In a typewriting machine, the combination with a carriage, of acontinuously rotating motor to drive the carriage, a driving connectionbetween the motor and carriage comprising a slip clutch permitting themotor to run while the carriage is restrained, and also comprising areversing clutch enabling the carriage to be driven in eitherA directionby said motor, column stops on thev carriage, a set of denominationalstops, 4denominational keys for selectively projecting the stops of saidset into position to cooperate with the column stops, escapementmechanism controlling the letter-feed travel sal member is in operativeposition, whereby the carriage may ,be returned to de-y nominationalpositions selectively determined by the denominational keys, and wherebywhen the direction controllingvkey is positioned to hold said universalmember out of operative position, the denominational stops areselectively o erable to cause the carriage to run forwar ly Vtopositions getermined by the operated denominational eys.

73. In a typewriting machine, the combination with a carriage, of acontinuously rotating motor to drive the carriage, a driving connectionbetween the motor and carriage comprising a slip clutch permitting themo-l tor to run while the carriage is restrained, and also comprismg areversing clutch enabling the carriage to be driven in either directionby said motor, column stops on the carriage, a set of denominationalstops, denominational keys for selectively projecting the stops of Saidset into position to cooperate with the column stops, escapement.

mechanism controlling the "letter-feed travel of the carriage, auniversal bar operated by the denominational keys to release thecarriage from said escapement mechanismrand permit it to run forwardly,a clutch-operating mechanism for said reversing clutch comprising auniversal member movable into and out of position `to be operated by thedenominational keys, a direction controlling key for so moving saiduniversal member, said clutch-operating mechanism operable bf thedenominational keys to position said reversing clutch to cause the motorto return the carriage when said universal member is in operativeposition, a platen on the carriage, a line-spacing mechanism forrotating the platen, and an operating connection between saidline-spacing'mechanism and said clutch-operating mechanism, whereby whenthe latter is operated to eli'ect a return movement of the carriage, theline-spacing mechanism is operated to rotate the platen.

74. In a typewriting machine, the combination with a carriage, of a setof tabulating keys, stops selectively operable thereby, a counter-stopcoperating with said stops to determine stopping positions of thecarriage, a motor connected to drive the carriage, means operated bysaid keys to enable the motor to drive the carriage in a forwarddirection to a, position determined by the selected' key, a key-operateddevice shiftable to control the direction in which the carriage isdriven by said motor, and means coperating with said controlling device,whereby said tabulating keys when operated may causea return movement ofthe carriage to a posltion selectively determined by the tabulatingstops.

' 7 In a typewriting machine, the combinatlon with a carriage and aplaten thereon, of a motor, driving connections between the motor andthe carriage comprising a reverslng clutch, a clutch-shifting mechanismfor reversing the driving connections between the motor and platen, anda line-spacing mechanism for rotating the platen, said linespacingmechanism connected to the clutchshifting mechanism for imparting alinespacing rotation to the platen when the clutch is shifted.

76. The combination with a typewriter carriage, of column stopsindependently adjustable thereon, denominational stops independentlymova'gble into position to coperate with the column stops, power meansfor driving the carriage in letter-feed direction and for returning thecarriage, keys to operate the denominational stops, and means(controlled by'said keys vfor causing the carriage to return todifferent positions corresponding to the positions of the column stops.

7-7. The combination with a typewriter carriage, of column stopsindependently adjustable thereon, denominational stops independentlymovable into position to cooperate with the column stops, power meansfor driving the carriage in letter-feed direction and for returning thecarriage, keys to operate the denominational stops, means controlled bysaid keys for causing the carriage to return to different positionscorresponding to the positions of the column` stops, and a key-operateddevice settable to cause the carriage to run forwardly when thedenominational keys are operated to positions selectively determined bysaid keys.

7 8. In a typewriting machine, the combination with a carriage, a rackthereon vand. column stops independently adjustable along the rack, ofal set of denominational keys, denominational stops selectivelyprojectible by said keys into position to coperate with the columnstops, a motor, connections between the motor and the carriagecomprising a reversing clutch whereby the carriage may be driven ineither direction, an escapement device controlling the letter-feedingmoveb v the said keys, a device for reversing the clutch. and adlrectlon controlling device movable into and out of position to effectan drive the latter from the former in either forward or reversedirection; shiftable means for controlling said'gearing, to govern thedirection of drive; letter-feeding mechanism, including an escapementwith which the carriage is normally connected, for controlling theforward drive; and tabulating mechanism for controlling the extent ofdrive in either direction, said tabulating mechanism normally operatingwhen actuated, to positively release said carriage from said escapement.

80. The combination, with a typewriter carriage; of a motor; reversiblegearing connecting said motor to said carriage, to drive the latter fromthe former in either forward or reverse direction; sliiftable means forcontrolling said gearing, to govern the direction of drive;letter-feeding mechanism, including an escapement with which thecarriage is normally connected, for controlling the forward drive; andtabulating mechanism for controlling the extent of drive in eitherdirection, said tabulating mechanism being operable when actuated, toshift said controlling means, to effect reverse drive of said carriage.

8l. The combination, with a typewriter carriage; of a motor; reversiblegearing connecting said motor to said carriage, to drive the latter fromthe former in either forward or reverse direction; shiftable means forcontrolling said gearing, to govern the direction of drive;letter-feeding mechanism, including an escapement with which thecarriage is normally connected, for controlling the forward drive; andtabulating mechanism for controlling the extent of drive in eitherdirection, said tabulating mechanism normally operating when actuated,to release said carriage from said escapement, but operable to shiftsaid controlling means, to effect reverse drive of said carrlage.

8:2. The combination, with a typewriter carriage; of a motor; reversiblegearing connecting said motor to said carriage, to drive the latter fromthe former in either forward or reverse direction; direction-controllingmeans associated with said gearing and normally set to effect forwarddrive, but shiftable to effect reverse drive; means for shifting saidcontrolling means; a stop on said carriage; a counter-.stop to co-acttherewith; and a key for simultaneously moving said counter-stop intoeffective position and operating said shifting means.

83. The combination, with a typewriter carriage; of a motor; reversiblegearing connecting said motor to said carriage, whereby said carriagecan be driven in either direction by said motor; shiftable meansassociated with said gearing, to control the directi'on of drive; meansfor actuating said shiftable means; and means for rendering saidlast-lnentioned means operative or inoperative to actuate said shiftablemeans.

8l. In a typewriting machine, the combination of ay carriage, a paperfeed roller thereon, pawl and ratchet line-spacing mechanism operativeon saidzfeed roller comprising a handle which is also effective to movesaid carriage, tabulating mechanism for said carriage, and other pawland ratchet linespacing mechanism operative on said feed roller andactuated by said tabulating mechanism.

85. In a typewriting machine, the combination of a paper carriage, linespacing mechanism for the paper thereon, and tabulating mechanismassociated with said carriage and effective also to operate said linespacing mechanism.

80. In a typewriting machine and in tabnlating mechanism, thecombination of a traveling paper support, and tabulating mechanismoperative on said support to move the paper in one direction along withsaid support and also effective to move the paper concurrentlyrelatively to said support in another direction.

87. In a typewriting machine, the combination of a carriage, a paperfeeding device thereon, an ope ating shaft for said device, andtabulating mechanism effective to afford tabulating runs to saidcarriage and also to actuate said operating shaft. 5

IVALTER WRIGHT.

IVitnesses TrrUs H. IRoNs, F: E. ALEXANDER.

